References of "2007"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailEffects of non-genetic and crossbreeding factors on daily milk yield of Ayrshire x (Sahiwal x Ankole) cows in Mahwa station (Burundi)
Hatungumukama, G.; Sidikou, D. L.; Leroy, Pascal ULg et al

in Livestock Science (2007), 110(1-2), 111-117

The study was carried out at the Mahwa station located in Bututsi natural region in South of Burundi at 1850 m of altitude. The objective of the study was to assess the effects of days in milk, cow's ... [more ▼]

The study was carried out at the Mahwa station located in Bututsi natural region in South of Burundi at 1850 m of altitude. The objective of the study was to assess the effects of days in milk, cow's calving age, type of crossbreeding, year and month of lactation, parity on daily milk yield of crossbreds Ayrshire (AY) x Sahiwal (S) x Ankole (A) cows. Milk yields were obtained from 9 cows (S) that have been both milked and suckled during the entire lactation, on 8 cows (M) only milked during the entire lactation and on 150 cows (SM) suckled before and milked after weaning. Data were analyzed using the procedure GLM in SAS for S,M, and SM cows separately. All factors affected significantly daily milk yields (P < 0.001). Least-squares means (LSM) for daily milk yields were highest at the 8th (7.16 +/- 0.07 1), 8th (7.63 +/- 0.35 1), and 7th (7.34 +/- 0.39 1) day in milk for SM, S and M lactations, respectively. The Wood model was able to detect 2 main groups of curve shape: standard for SM and S cows and atypical decreasing for M cows. An important decrease in milk production was observed around the 120th day in SM cows corresponding to the weaning period. Crossbreeding improved milk production and highest yields were observed with 50% to 75% of Ayrshire inheritance (LSM = 5 +/- 0.05 to 5.51 +/- 0.02 1/day). A significant increase was observed from 1977 to 1992 due to the improvement of genetic and management techniques. During this period, LSM raised from 1.26 +/- 0.11 1 to 4.74 +/- 0.03 1 per day for SM cows. Unfortunately, the 1993 civilian war destabilized the managerial techniques and consequently, the milk production decreased in Mahwa station, In all cows, milk production was significantly higher from December to May (LSM - 3.96 +/- 0.03 1/day) during the rainy season than in September (LSM = 3.12 +/- 0.03 1/day) at the end of the dry season. (C) 2006 Elsevier B.V. All rights reserved. [less ▲]

Detailed reference viewed: 41 (1 ULg)
Full Text
Peer Reviewed
See detailNew spillway at the Esch-sur-Sûre dam in Luxembourg
Lazaro, Philippe; Toussin, Guy; Didier, Gilles et al

in Wasserwirtschaft (2007), 10

The 50-m high arch dam of Esch-sur-Sûre, built on the river Sûre between 1956 and 1957, is located 1.2 km upstream of the town of esch-sur-Sûre in the north west of Luxembourg. As the dam is not equipped ... [more ▼]

The 50-m high arch dam of Esch-sur-Sûre, built on the river Sûre between 1956 and 1957, is located 1.2 km upstream of the town of esch-sur-Sûre in the north west of Luxembourg. As the dam is not equipped with a surface spillway, the construction of a new one is considered necessary. The new spillway design with a discharge capacity of 400 m³/s consists in building two labyrinth weirs discharging into a spillway tunnel passing under the left dam abutment. [less ▲]

Detailed reference viewed: 123 (6 ULg)
See detailLa qualification juridique de la relation de travail
Clesse, Jacques ULg

in Questions de droit social (2007)

Detailed reference viewed: 57 (16 ULg)
Peer Reviewed
See detailOpera latina : le nouveau site Internet du LASLA
Denooz, Joseph ULg

in Citti, Francesco; dell Vecchio, Tommaso (Eds.) Proceedings of the Colloquium (2007)

Detailed reference viewed: 160 (13 ULg)
Full Text
See detailEvaluation : réponses à des questions qui dérangent
Vandoorne, Chantal ULg

in La Santé de l'Homme (2007), (390), 24-25

Detailed reference viewed: 48 (23 ULg)
Full Text
See detailDe la séparation des pouvoirs à l'espace public démocratique
Herla, Anne ULg

Article for general public (2007)

Detailed reference viewed: 19 (2 ULg)
See detailBIANZO: biodiversity of three representative groups of the Antarctic Zoobenthos: comparative structure, distribution and fucntion
De Broyer, Claude; Vanreusel, Ann; Vanhove, Sandra et al

Report (2007)

Detailed reference viewed: 13 (0 ULg)
Full Text
Peer Reviewed
See detailThe biostratigraphical and palaeogeographic framework of the earliest diversification of Tetrapods (Late Devonian)
Blieck, A; Clement, G; Blom, H et al

in Special Publication - Geological Society of London (2007), 278

Detailed reference viewed: 19 (5 ULg)
Full Text
Peer Reviewed
See detailA Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies Undergoing Simultaneous Resonances—Part I: Theoretical Development
Gallego-Garrido, Jon; Dimitriadis, Grigorios ULg; Wright, Jan Robert

in International Journal of Rotating Machinery (2007), 2007

Blade tip timing is a technique for the measurement of vibrations in rotating bladed assemblies. Although the fundamentals of the technique are simple, the analysis of data obtained in the presence of ... [more ▼]

Blade tip timing is a technique for the measurement of vibrations in rotating bladed assemblies. Although the fundamentals of the technique are simple, the analysis of data obtained in the presence of simultaneously occurring synchronous resonances is problematic. A class of autoregressive-based methods for the analysis of blade tip timing data from assemblies undergoing two simultaneous resonances has been developed. It includes approaches that assume both sinusoidal and general blade tip responses. The methods can handle both synchronous and asynchronous resonances. An exhaustive evaluation of the approaches was performed on simulated data in order to determine their accuracy and sensitivity. One of the techniques was found to perform best on asynchronous resonances and one on synchronous resonances. Both methods yielded very accurate vibration frequency estimates under all conditions of interest. [less ▲]

Detailed reference viewed: 106 (4 ULg)
Full Text
Peer Reviewed
See detailComment j'explore... les nodules pulmonaires de types verre depoli et mixte: une nouvelle semiologie tomodensitometrique de l'adenocarcinome pulmonaire.
Couvreur, Thierry ULg; Kerzmann, Arnaud ULg; Radermecker, Marc ULg et al

in Revue Médicale de Liège (2007), 62(7-8), 515-22

Recently a new computed tomography semiology of the pulmonary adenocarcinoma was highlighted. Studies on ground-glass nodule and on mixed nodule showed the relation between these radiological images and ... [more ▼]

Recently a new computed tomography semiology of the pulmonary adenocarcinoma was highlighted. Studies on ground-glass nodule and on mixed nodule showed the relation between these radiological images and the different anatomopathological forms of lung adenocarcinoma. Ground-glass opacity can correspond to precancerous lesions and morphological characteristics of nodules are correlated with the prognosis. The presence of spiculation, pleural retraction and air bronchogram is significantly more important in neoplasic lesions. The presence or the apparition of a solid component inside the nodule or the presence of indentation is highly suggestive of adenocarcinoma. A lesion smaller than 20 mm and persistant after 1 month must be, either followed up, or removed by a limited surgical resection. Lesions larger than 20 mm or associated with a solid component must be treated by conventional surgery. [less ▲]

Detailed reference viewed: 96 (6 ULg)
Full Text
Peer Reviewed
See detailCascade high volume hemofiltration : Preliminary data in septic shock patients
WIESEN, Patricia ULg; MONCHI, Mehran; DUBOIS, Bernard ULg et al

in Blood Purification (2007), 25

Detailed reference viewed: 15 (5 ULg)
See detailHistoire, vérité et citoyenneté : réflexion sur le rôle social de l'historien
Dumont, Jonathan ULg

Article for general public (2007)

Detailed reference viewed: 47 (4 ULg)
Full Text
Peer Reviewed
See detailGlycosaminoglycan interactions in murine gammaherpesvirus-68 infection.
Gillet, Laurent ULg; Adler, Heiko; Stevenson, Philip G

in PLoS ONE (2007), 2(4), 347

Glycosaminoglycans (GAGs) commonly participate in herpesvirus entry. They are thought to provide a reversible attachment to cells that promotes subsequent receptor binding. Murine gamma-herpesvirus-68 ... [more ▼]

Glycosaminoglycans (GAGs) commonly participate in herpesvirus entry. They are thought to provide a reversible attachment to cells that promotes subsequent receptor binding. Murine gamma-herpesvirus-68 (MHV-68) infection of fibroblasts and epithelial cells is highly GAG-dependent. This is a function of the viral gp150, in that gp150-deficient mutants are much less GAG-dependent than wild-type. Here we show that the major MHV-68 GAG-binding protein is not gp150 but gp70, a product of ORF4. Surprisingly, ORF4-deficient MHV-68 showed normal cell binding and was more sensitive than wild-type to inhibition by soluble heparin rather than less. Thus, the most obvious viral GAG interaction made little direct contribution to infection. Indeed, a large fraction of the virion gp70 had its GAG-binding domain removed by post-translational cleavage. ORF4 may therefore act mainly to absorb soluble GAGs and prevent them from engaging gp150 prematurely. In contrast to gp70, gp150 bound poorly to GAGs, implying that it provides little in the way of adhesion. We hypothesize that it acts instead as a GAG-sensitive switch that selectively activates MHV-68 entry at cell surfaces. [less ▲]

Detailed reference viewed: 22 (4 ULg)
Full Text
See detailL’apport de ‘l’enquête pragmatique’ à l’anthropologie du Maghreb. A propos d’une recherche comparative sur le sens de la justice en Tunisie et en France
Nachi, Mohamed ULg

in Cahiers du CERES. Série Anthropologie-Ethnologie (2007), 1

L'étude cherche à montrer la spécifité de la sociologie pragmatique et à relever l'apport de ‘l’enquête pragmatique’ pour l’anthropologie du Maghreb

Detailed reference viewed: 29 (1 ULg)
Full Text
Peer Reviewed
See detailSuppressing aeroelastic instability by means of broadband passive TET, part 1, theory
Lee, Y.; Vakakis, Alexander F.; Bergman, L. A. et al

in AIAA Journal (2007), 45

We study passive and nonlinear targeted energy transfers induced by resonant interactions between a singledegree- of-freedom nonlinear energy sink (NES) and a 2-DOF in-flow rigid wing model. We show that ... [more ▼]

We study passive and nonlinear targeted energy transfers induced by resonant interactions between a singledegree- of-freedom nonlinear energy sink (NES) and a 2-DOF in-flow rigid wing model. We show that it is feasible to partially or even completely suppress aeroelastic instability by passively transferring vibration energy from the wing to the NES in a one-way irreversible fashion. Moreover, this instability suppression is performed by partially or completely eliminating its triggering mechanism. Numerical parametric studies identify three main mechanisms for suppressing aeroelastic instability: recurring burstout and suppression, intermediate suppression, and complete elimination.Weinvestigate these mechanisms both numerically by the Hilbert–Huang transform and analytically by a complexification-averaging technique. Each suppression mechanism involves strong 1:1 resonance capture during which the NES absorbs and dissipates a significant portion of energy fed from the flow to the wing. Failure of suppression is associated with restoring the underlying triggering mechanism of instability, which is a series of superharmonic resonance captures followed by escapes from resonance. Finally, using a numerical continuation technique, we perform a bifurcation analysis to examine sensitive dependence on initial conditions and thus robustness of instability suppression. [less ▲]

Detailed reference viewed: 57 (0 ULg)
Full Text
Peer Reviewed
See detailComparative analysis of triacylglycerol composition, melting properties and polymorphic behavior of palm oil and fractions
Danthine, Sabine ULg; Gibon, Veronique

in European Journal of Lipid Science and Technology [=EJLST] (2007), 109(4), 359-372

Palm oil is without doubt the most widely fractionated oil. Dry fractionation is based on differences in the melting points of triacylglycerols (TAG) which will crystallize selectively during the cooling ... [more ▼]

Palm oil is without doubt the most widely fractionated oil. Dry fractionation is based on differences in the melting points of triacylglycerols (TAG) which will crystallize selectively during the cooling process. Unfortunately, limitations due to intersolubility, closely linked to polymorphism, induce formation of co-crystals at each crystallization step. For this reason, only restricted TAG enrichments are observed. In this work, a series of samples (24) of palm oil, solid and liquid fractions (stearins, mid fractions, oleins and superoleins) have been selected and examined in terms of TAG composition (by HPLC), differential scanning calorimetry (DSC) melting profile and variable temperature powder X-ray diffraction pattern. Three major endotherms [low-melting, high-melting and very high-melting peaks (LMP, HMP and VHMP)] are detected in the DSC melting profiles (5 degrees C/min). The VHMP is only recorded for palm stearin which contains more SSS components. The HMP contribution is weak for palm olein and even not observed for palm super oleins. The LMP is usually made up of UUU, SUU and SUS components; SUS components are observed in both LMP and HMP; the HMP is also made up of some SSS, except for palm oleins and super oleins. Sub-alpha(2), sub-alpha(1), alpha, beta'(2), beta'(1), and beta polymorphic forms are recorded; the LMP components preferentially crystallize in sub-alpha(2), sub-alpha, and alpha forms; the HMP components generally crystallize in beta'(2) and beta'(1), with a tendency to exhibit beta crystals, depending on the SSS content. Components of the VHMP have an increased tendency to stabilize in the 0 form; in view of the results, we can assume that there is a clear relationship between TAG composition, melting properties and polymorphic behavior and of palm oil and fractions. [less ▲]

Detailed reference viewed: 108 (14 ULg)